Has anyone had the Linear G lifting procedure?

My mom has been worried lately about her sagging jawline, double chin, and chubby cheeks, so I'm looking into getting a lifting treatment as a gift. For a middle-aged woman with a sagging jawline, Ultherapy is expensive, but the results are excellent. However, the important thing is that my mom is extremely sensitive to pain, so she strongly refuses any lifting procedures that are painful. While researching various options, I came across Linear-G Lifting. I was really curious because it claims to be not very painful, delivers energy to the deep layers of the skin to improve lifting and elasticity, and even has fat-reducing effects. Since Linear-G Lifting is a bit unfamiliar to me, there isn't much information available, so I'm curious about the experiences of those who have actually undergone the procedure. I'd like to know how effective it was, how much sagging is improved for a middle-aged woman, and how much pain is actually felt.